The plot

Millennia after the "Sixty Minute War", a cataclysmic event that destroyed much of planet Earth, cities survive the now-desolate planet by roaming the globe on huge wheels, battling each other and devouring smaller traction towns for resources. Tom Natsworthy, a low-class citizen of the moving city of London, fights for survival after encountering the fugitive Hester Shaw. The two then forge an unlikely alliance which just may change the future.